From 7a0e2c01d4670637e15d77b579969ec6270b0699 Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Sat, 23 Oct 2021 16:42:26 +0200
Subject: [PATCH] Add support for parsing negation in scripting api
 preprocessor

---
 Source/Tools/Flax.Build/Bindings/BindingsGenerator.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.cs b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.cs
index 280006170..553c13c50 100644
--- a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.cs
+++ b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.cs
@@ -374,6 +374,9 @@ namespace Flax.Build.Bindings
                                 }
 
                                 // Very simple defines processing
+                                var negate = tokenValue[0] == '!';
+                                if (negate)
+                                    tokenValue = tokenValue.Substring(1);
                                 tokenValue = ReplacePreProcessorDefines(tokenValue, context.PreprocessorDefines.Keys);
                                 tokenValue = ReplacePreProcessorDefines(tokenValue, moduleOptions.PublicDefinitions);
                                 tokenValue = ReplacePreProcessorDefines(tokenValue, moduleOptions.PrivateDefinitions);
@@ -383,6 +386,8 @@ namespace Flax.Build.Bindings
                                 tokenValue = tokenValue.Replace("||", "|");
                                 if (tokenValue.Length != 0 && tokenValue != "1" && tokenValue != "0" && tokenValue != "|")
                                     tokenValue = "0";
+                                if (negate)
+                                    tokenValue = tokenValue == "1" ? "0" : "1";
 
                                 condition += tokenValue;
                                 token = tokenizer.NextToken(true);